Installing Signal on a new phone is only one part of changing devices. You also need to know where the old history is stored and what can restore it. Sending a new message confirms the account works; it does not confirm that older conversations and attachments came back. This guide separates preparation, restoration and verification.
Choose a route from the materials you actually have
Can the old phone still open its chats? Are both phones on the same platform? Was a backup completed, and do you have its recovery key? Start there. This guide mainly covers phone-number accounts. Android Signal Login users also need their Account ID and the dedicated restoration flow. [1]
| Situation | Possible route | Check first |
|---|---|---|
| Both phones available, same platform | Device transfer or an existing Secure Backup | The old app opens its history and transfer requirements are met |
| Switching between Android and iPhone | Signal Secure Backups | A completed backup and its recovery key |
| Old phone lost or unusable | An existing Secure Backup or a compatible local backup | Actual backup material, not just a remembered PIN |
| Only the computer still has chats | Check Desktop backup support for a primary Android phone | A complete backup folder and key; this route does not restore to iPhone |
The official recovery matrix and Desktop backup guide support these choices. Seeing messages on a linked computer and creating a restorable backup are separate steps. Never infer that the second has happened merely because the first is true. [2] [3]
Know the backup’s coverage before expecting a recovery
Secure Backups are optional and end-to-end encrypted. The current free option covers text messages and the most recent 45 days of media; a paid option offers broader media retention. Check current pricing and availability inside the app. View-once content and messages due to disappear within the next 24 hours are excluded. [4]
Text returning without an older photograph is not automatically a failed restore. Compare the missing item’s age with the original plan and backup completion time first. Nor is a backup an unlimited undo button: repeatedly entering a key cannot recreate information absent from the available archive.
David Bombal’s YouTube Short Signal Just Launched Encrypted Backups - Worth It? raises the decision to opt in, free versus paid coverage and privacy trade-offs. It was published during the Android beta rollout. The platform guidance here uses current documentation, including iOS, cross-platform recovery and Desktop backups.
A PIN, a verification code and a recovery key do different jobs
- SMS verification code: used in the relevant registration flow; it cannot decrypt a chat archive.
- Signal PIN: helps recover certain account details and settings. It is neither a chat backup nor the phone’s screen-lock code. [5]
- Backup recovery key: decrypts the corresponding backup. Secure Backups use a 64-character key. Do not assume an old local-backup tutorial’s passphrase format applies to the current screen. [4]
Label the saved entry with its purpose and creation date. Store it somewhere you can still access if the old phone breaks. If that place is a password manager, check that you can sign in and unlock it on another device. Keeping the only key copy on the phone you are about to erase creates a single point of failure.
Finish five preparations before changing phones
- Update and allow time. Update Signal, charge the phones and allow enough storage and a stable connection. Start before you are due to hand over the old phone.
- Confirm the route. Open the backup settings and identify what is actually enabled. For a cross-platform move, check that a Secure Backup completed. A local folder is not an archive in the Secure Backup service.
- Check the key material. Make sure it is readable, complete and accessible without the old phone. Never submit the real key to an online checker.
- Choose verification samples. Note a recent chat, an important older chat and a few attachments within the plan’s coverage. Record what to inspect without making unnecessary plaintext copies.
- Preserve the starting state. Do not uninstall, clear app storage or factory-reset before selecting the route. A direct transfer moves history; the old phone is not guaranteed to remain a second copy afterward.
For Android on-device backups, keep the complete backup folder and key, and verify that the folder has been copied somewhere that survives erasing the phone. Do not select only its largest file. Current backup formats may differ from early tutorials about a single .backup file. [7]
Restore through the matching setup flow
Using Signal Secure Backups
Choose the Secure Backup option during initial setup, follow account verification and enter the matching key. For a phone-number account, check the original number. Skipping restore does not mean history will automatically appear later. If the new app already contains new conversations, assess that data before resetting setup: separate histories cannot be merged through Secure Backups. [8] [4]
Moving between Android phones
Keep both nearby and enable the requested Wi-Fi, Bluetooth and permissions. Choose transfer from an Android device on the new phone, then start Transfer account under account settings on the old one. Follow pairing and registration prompts. This moves the history rather than creating two independent primary installations. [9]
Moving between iPhones
Choose the option indicating you have the old phone during the new phone’s restore or transfer setup. Follow the prompts to scan its QR code with the old iPhone. Check Local Network access, Wi-Fi, Bluetooth and Low Power Mode requirements. An iCloud device backup is not a substitute for Signal’s chat restoration route. [10]
Use our Android, iOS or Windows download guide if you need to install the app. A tool promising to bypass the recovery key is not a sensible starting point for troubleshooting.
Verify the history and the working account separately
Inspect your chosen samples: recent and older conversations, covered attachments that actually open, and expected groups and contacts. Then exchange an ordinary message with a trusted person. Checking history and checking new delivery as two separate tasks is more useful than briefly glancing at a populated chat list.
If only media from a particular period is absent, compare coverage and dates. If an entire conversation is missing, recheck the selected backup and when it completed. Do not erase the only device still displaying needed material just to make the two lists appear consistent.
Review linked devices last. Restoring a Desktop backup to Android requires relinking existing devices. For other routes, follow the app’s current status. Our linked-device guide covers the next steps. [3]
Troubleshoot from evidence, not repeated reinstalls
- No backup found: confirm that this backup type was enabled and completed. Local backups and Secure Backups use different restore paths.
- Key rejected: verify the full value and matching archive. Check that you have not entered a PIN, SMS code or an unrelated old passphrase.
- No restore prompt: check whether initial setup was skipped. Before reinstalling, establish that recovery material exists and assess any new data.
- No old phone and no earlier backup: registering again cannot recreate its history. If a computer retains data, investigate the documented Desktop-to-Android route. It cannot recover content the computer never held and does not support an iPhone destination. [8] [3]
Will paying bring back photographs already lost?
Do not assume it will. First establish that the photographs still exist in data available to back up. A larger retention allowance cannot generate missing data.
Can support reset a key to unlock the old archive?
No. Signal cannot bypass the Secure Backup recovery key. Both an accessible key and a completed backup are prerequisites for this route.
When is the phone change finished?
After checking required chats and covered attachments, successful new messaging, linked devices and the new phone’s backup status. Only then plan the remaining handling of the old device.
Sources and editorial scope
Independently written by me-signal.org. Checked on 22 September 2026. The videos’ public descriptions and chapters, and visible captions for the backup video, informed the topics; current official documentation supports the feature guidance. The examples and checking workflows are our editorial suggestions, not a claim of testing recovery on your devices or an endorsement by Signal or the video creators.
- Video: David Bombal, Signal Just Launched Encrypted Backups - Worth It? (2025-09-12).
- [1] Phone-numberless registration for Android
- [2] Message history restoration options
- [3] Signal Desktop backups
- [4] Signal Secure Backups
- [5] Signal PIN
- [6] Staying safe from phishing and impersonation
- [7] Android on-device backups
- [8] Troubleshooting Secure Backups
- [9] Android-to-Android transfer
- [10] iOS-to-iOS transfer
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Signal usernames: phone number privacy guide